Evaluation of Three Military Diesel Injection Systems on Alternative Fuels.

• Main Authors: Callahan,T J, Bowden,J N
• Other Authors: SOUTHWEST RESEARCH INST SAN ANTONIO TX BELVOIR FUELS AND LUBRICANTS RESEARCH FACILITY
• Format: Text
• Language: English
• Published: 1987
• Subjects: Fuels; Reciprocating and Rotating Engines; *DIESEL FUELS; *FUELS; *DIESEL ENGINES; ARCTIC REGIONS; ARMY EQUIPMENT; EMERGENCIES; VISCOSITY; HIGH TEMPERATURE; ARMY; VEHICLES; ENGINES; PERFORMANCE(ENGINEERING); FLOW RATE; TEST AND EVALUATION; MILITARY VEHICLES; FUEL INJECTION; LOW TEMPERATURE; TEST METHODS; OPTIMIZATION; REMOTE AREAS; VAPOR LOCK; *Alternate fuels; *Injection carburetors; Test fuels; PE62733H; ASH20; Arctic
• Online Access: http://www.dtic.mil/docs/citations/ADA180257; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA180257

Army diesel-powered vehicles are often required to operate in remote areas and in extreme ambient conditions, e.g., arctic or desert areas. Use of emergency fuels with less than optimum properties can result in unsatisfactory engine performance. This study examined the relationship between front-end volatility of the fuel and vapor lock at high fuel temperatures and the relationship between high viscosity fuels and pump-filling problems at low fuel temperatures. Three Army diesel injection systems representing the majority of Army equipment were selected for testing. Fuel flow rate tests were conducted at both high and low fuel temperatures and at a variety of operating conditions. Test fuels were blended to provide fuels with a range of 10 percent points for the high-temperature tests and fuels with a range of viscosities for the low-temperature tests. The front-end volatility of the fuel was not observed to present any problems at the high temperatures. However, fuel viscosity at both high and low temperatures was observed to affect the fuel flow rate for each injection system. Keywords: Diesel injection, Fuels, Property effects, Diesel fuels.